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Sep
12
comment nmap ipv6 os scan fails
@SebastianBrestin The current version of Nmap is 6.47. IPv4 and IPv6 use completely different fingerprinting engines with separate databases, but the recommendations still apply.
Sep
11
answered nmap ipv6 os scan fails
Jul
4
awarded  Good Answer
Jul
1
awarded  Nice Answer
Jun
30
revised How to close ports in Linux?
Add info about how to close the port.
Jun
30
comment How to scan for heartbleed vulnerability with nmap from Ubuntu 12.04?
@drs Thanks for the suggestion and the edit. For posterity, I had been using tinyurl.com/nmap-heartbleed for ease of communication when the Heartbleed issue first came out.
Jun
30
answered How to close ports in Linux?
Jun
25
answered How to scan for heartbleed vulnerability with nmap from Ubuntu 12.04?
Mar
2
awarded  Yearling
Feb
5
comment Using $? in an if statement
@llua It's not pointless. $? holds the status of the last pipeline, which is not the test ([) command in the if statement. The example is testing whether some command was successful. You can do the same with && and ||, but it can make long, unreadable lines compared to if [ $? -eq 0 ]. The same argument goes for if some command
Feb
5
comment How do I explain to this website team that they need to support Linux?
Have you tried it in Chrome on Windows? As far as a web developer is concerned, the differences should be in layout engines and JavaScript engines, not in operating system. If it's broken on Chrome for Windows, you have a stronger argument.
Dec
12
answered How do I search for all the folders that begin with a dot ( . )?
Aug
25
revised Nmap -sn: scan or no scan?
Lots of links to documentation
Aug
23
answered Nmap -sn: scan or no scan?
Aug
11
comment Text only mode in Linux (No Gnome, KDE, Unity) to prolong battery life
then they are not Upstart jobs. That may be where they store configuration, but the service is then probably a System V init script in /etc/init.d/ managed by rc symlinks. Use sudo update-rc.d gdm disable instead.
Aug
11
comment Text only mode in Linux (No Gnome, KDE, Unity) to prolong battery life
sudo service gdm stop will not disable it on boot, but just stop the service. For Upstart jobs, sudo mv /etc/init/gdm.conf{,.norun} to disable.
Jun
27
comment Standard unix util to split “foo.bar.baz” into “foo.bar” + “.baz”?
It's important to note that this solution is POSIX shell-compatible, which means it should work in any shell that supports the IEEE Std 1003.1 Shell Command Language (see pubs.opengroup.org/onlinepubs/9699919799/utilities/…)
May
10
comment Does fail2ban offer any additional protection to SSH if password login is already turned off?
fail2ban is a general-enough framework that you can use it to automate any log-checking function. Email you any time your app throws an exception. Restart a service if it logs low-memory errors. Sky's the limit!
May
10
answered Does fail2ban offer any additional protection to SSH if password login is already turned off?
Apr
12
awarded  Commentator